Home / 3,280,672.80-4,921,009.20-1,686,349.80

Finding the Fourth Proportional to 3,280,672.80, 4,921,009.20 and 1,686,349.80

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Solution

The fourth proportional to 3,280,672.80, 4,921,009.20 and 1,686,349.80 is: 2,529,524.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,672.80 : 4,921,009.20 = 1,686,349.80 : x
  2. Step 2: Convert to fraction form
    3,280,672.80/4,921,009.20 = 1,686,349.80/x
  3. Step 3: Cross multiply
    3,280,672.80x = 4,921,009.20 × 1,686,349.80
  4. Step 4: Simplify right side
    3,280,672.80x = 8,298,542,880,218.16
  5. Step 5: Solve for x
    x = 8,298,542,880,218.16/3,280,672.80
  6. Step 6: Final answer
    x = 2,529,524.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.